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49 lines
1.4 KiB
C#
49 lines
1.4 KiB
C#
using System;
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using System.IO;
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using System.Reflection;
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using System.Text;
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using System.Threading.Tasks;
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namespace DHT.Utils.Resources {
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public sealed class ResourceLoader {
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private readonly Assembly assembly;
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public ResourceLoader(Assembly assembly) {
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this.assembly = assembly;
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}
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private Stream GetEmbeddedStream(string filename) {
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Stream? stream = null;
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foreach (var embeddedName in assembly.GetManifestResourceNames()) {
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if (embeddedName.Replace('\\', '/') == filename) {
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stream = assembly.GetManifestResourceStream(embeddedName);
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break;
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}
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}
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return stream ?? throw new ArgumentException("Missing embedded resource: " + filename);
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}
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private async Task<string> ReadTextAsync(Stream stream) {
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using var reader = new StreamReader(stream, Encoding.UTF8);
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return await reader.ReadToEndAsync();
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}
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public async Task<string> ReadTextAsync(string filename) {
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return await ReadTextAsync(GetEmbeddedStream(filename));
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}
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public async Task<string> ReadJoinedAsync(string path, char separator) {
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StringBuilder joined = new();
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foreach (var embeddedName in assembly.GetManifestResourceNames()) {
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if (embeddedName.Replace('\\', '/').StartsWith(path)) {
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joined.Append(await ReadTextAsync(assembly.GetManifestResourceStream(embeddedName)!)).Append(separator);
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}
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}
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return joined.ToString(0, Math.Max(0, joined.Length - 1));
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}
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}
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}
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